njin_camera.h

#pragma once
#include "_comps.h"
#include "_types.h"
#include <entt/entity/entity.hpp>
 
namespace njin {
struct context;
struct level_handle;


struct camera_follow {
  entt::entity target = entt::null; 
  vec2 offset{}; 
  vec2 deadzone{};
  f32 smoothing = 0.12f;
  vec2 lookahead{};
  f32 lookahead_smoothing = 0.5f;
  rect bounds{};
  bool center = true;
  bool pixel_snap = false;
 
  vec2 look{};        
  vec2 last_target{}; 
  bool started = false;
};

entt::entity camera_spawn(context &ctx, f32 zoom = 1.0f, vec2 pos = {});

rect level_bounds(const context &ctx, level_handle level);

vec2 camera_clamp(const context &ctx, vec2 pos, const camera_2d &cam, rect bounds);

camera_view camera_active(const context &ctx);

vec2 w2scr(const context &ctx, vec2 pos);

vec2 scr2w(const context &ctx, vec2 pos);

rect camera_bounds(const context &ctx);

void camera_set_post_shader(context &ctx, shader_handle shader);
} // namespace njin